I want to hear from those who have sprayed on a 4000 or larger converter.

What size hit?
What rpm did you activate at?
Did you progressively control the hit?
What was your rated stall vs. your actual stall on the bottle?

I'm just wondering if I should ease into a 100-150 shot on my PT4000 converter because it's pretty loose already NA, I can't imagine what it's gonna do with a 100-150 shot on top of it.

 

nobody?

 

I spray a TNT 150 hit and on the motor it stalls 4000 on the nitrous about 4600 to 4800 and i spray it dead out of the hole. I also drive it everyday.

 

Guy at the local track has a yank SS4000 and sprays a 150 shot. 60ft. in the 1.50's on a basically stock car and runs good mph as well. Should be fine.

 

The Yank SS and the Yank PT are different converters. The shift extension on the PT is to high to spray. You'll blow through the converter.

 

will work and talk to v6bird or even mike @ yank

 

Yeah I know, that's why i'm thinking of having a progressive controller ramp the spray up from 0% to 100% from 4000 to 5000 to keep it from blowing through.

I just want to see what results other people are getting. I know there are quite a few out there spraying on a 4000 or higher converter though!

 

My converter stalls at 4200 on the brake and i was spraying a 300 shot last year. What do the logs show your shift extension at? Thats the only way you can accuratly guestimate (is that a word LOL) if the converter will be to loose.

 

I haven't logged it closely with the new converter yet. I know it's hitting nearly 4k flashing though, we saw that when we were tuning it on the dyno. I'm just debating on trying to spray this converter, dumping the N2O kit and staying NA for now or just saying screw it and shooting for the stars.

 

Its sunny right now at my house LOL
take it out and run it through the gears and get a log. I would be surprized if you went to far throught that converter with a small shot. Come on Gill the "dark side" is calling. (in a choppy evil darth vadar voice) Gill I am your father, spray the car dammit

 

Sprayed a 150 on my PT4400, no problems! It ran high in the rpm's but it took it like a champ. Went from 12.3x's down to 10.9x's on a bolt-on car at over 3500#. I do recommend a manual lock-up switch though, it will help with a converter that loose. I locked mine about half way through 3rd and it worked really well.

 

Why a manual switch?
I lock mine up tuning w/ hpt. I prefer the continuity of locking in the same rpm/mph.
you shift manualy to
hell my car is so automated I can change cd's while making a pass

 

my roommate "RyansSS"
had a 4K stall in his SS camaro with a TH-400
running a TB plate kit 150 shot

he loved it

 

You definately don't have to use a manual switch, doing it through tuning is way better! You just have to have more than one tune if you race both NA and on the spray, no biggie.

 

.

Slow car, my N2O convertor was ~4000. I had a chip at 4000 and a trigger at 4300.
Stalled about 52-5400 on 175 shot plate full hit. 29 X 10W stiffwall Hoosier. Used same set up on my 400 & Glide. Picked up from 9.30 to 8.50. Good luck.

.

 

I'm runnin a Yank SS4000E in my car and it's been workin awesome takin anything I can throw at, but I wouldn't recommend hittin the PT4000, that bitch is loose, my buddy had one in his car and tried just a 75 shot and never came off the shift light in any gear!

 

Mine would never come down below 5800 rpms with my PT4400, but it ran really well anyway! I shifted at 6500 and I also had 4.30's which helped a ton.

 

That sounds perfect to me

 

I would use a manual lockup hooked to a window or rpm switch so I didn't need multiple tunes. I could just activate/deactivate the lockup circuit when i needed it.

 

running one tune for N/A and nitrous is a joke. Can you do it yes but you will either have a half assed N/A tune with a correct nitrous tune or both would be dicked up.
I used to have one tune. it was good and safe on the gas but a dog N/A. (when i ran small shots) All this stuff sounds good on the internet untill you start loading your car up with more and more switches and relays etc. Just my opinion though